﻿using System;

class ExchangeValues
{
    static void Main()
    {
        int x = 5;
        int y = 10;
        Console.WriteLine("Default varibles: x = {0}, y = {1}", x, y);
        x = x + y;
        y = x - y;
        x = x - y;
        Console.WriteLine("Exchanged varibles: x = {0}, y = {1}", x, y);
    }
}
